Closure latch

ABSTRACT

A door lock of the freewheeling type includes a holding lever controlled by the locking lever and engageable with the outside operating lever when the door is open and the pushbutton is momentarily depressed to maintain the intermittent link in its upper bypass position with respect to the detent. A transfer lever engaged by the bolt releases the holding lever when the door is closed and the bolt reaches latched position. If the pushbutton is not momentarily depressed before the door is closed, the lock automatically undogs.

United States Patent Inventor Appl. No.

Filed Patented Assignee Charles W. Foley Warren, Mich.

May 16, 1969 Mar. 30, 1971 General Motors Corporation Detroit, Mich.

CLOSURE LATCH 9 Claims, 6 Drawing Figs.

U.S. Cl Int. Cl Field of Search 292/216 E05c 3/26 292/216, 280, J3, J4

[56] References Cited UNITED STATES PATENTS 3,365,226 1/1968 Shay292/216 3,384,405 5/1968 Schiele 292/216 Primary Examiner-Richard E.Moore Att0meys-W. E. Finken and Herbert Furman ABSTRACT: A door lock ofthe freewheeling type includes a holding lever controlled by the lockinglever and engageable with the outside operating lever when the door isopen and the pushbutton is momentarily depressed to maintain theintermittent link in its upper bypass position with respect to thedetent. A transfer lever engaged by the bolt releases the holding leverwhen the door is closed and the bolt reaches latched position. If thepushbutton is not momentarily depressed before the door is closed, thelock automatically undogs.

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A T TORNEY CLOSURE LATCH This invention relates to closure latches andmore particularly to vehicle body door locks. I

Door locks of the freewheeling type include a coupling member orintermittent link for selectively coupling and uncoupling the outsideoperating means and detent. Automatic undogging is provided bycooperating undogging shoulders on the intermittent link and detent formoving the intermittent link to a coupled position should it be inuncoupled position and the door closed.

Generally door locks of this type also include a keyless locking featurewherein depression of the operating means as the door is being closedshifts the intermittent link to a bypass position so that no engagementwith the detent can occur and the intermittent link remains in uncoupledposition.

In its preferred embodiment, the door lock of this invention is of thisgeneral type but includes the additional feature of requiring onlymomentary actuation of the outside operating meansto hold theintermittent link in uncoupled position as the door is closed. Theholding means includes a holding member movable into and out of the pathof movement of the outside operating means upon movement of theintermittent link into and out of uncoupled and coupled positions,respectively. The holding member engages the outside operating meanswhen momentarily actuated to maintain the outside operating means indepressed position. To return the operating means to its normalposition, a transfer lever is actuated by the bolt when the bolt reacheslatched position and moves the holding member out of engagement'with theoperating means.

The primary object of this invention is to provide an improved vehiclebody door lock of the freewheeling type having automatic undogging meansand means for selectively disabling the automoatic ,undogging meanswithout requiring continuous control by the operator as the door isclosed. Another feature of this invention is to provide such a door lockwherein bolt actuated means releases the disabling means when the boltreaches latched position. A further feature of this invention is toprovide such a door lock wherein the selective disabling means includesmeans holding the coupling member in an uncoupled bypass position untilreleased by the bolt actuated means when the bolt reaches latchedposition. Yet another feature of this invention is that the holdingmeans are moved between holding and released positions by the lockingmeans and .are engageable with the operating means upon momentaryactuation thereof to maintain the coupling member in the uncoupledbypass position.

These and other objects of this invention will be readily apparent fromthe following specification and drawings wherein:

FIG. 1 is a partial side elevational view of a vehicle body embodying adoor lock according to this invention;

FIG. 2 is an enlarged view taken generally along the plane indicated byline 2-2 of FIG. 1;

FIG. 3 is a view taken generally along the plane indicated by line 3-3of FIG; 2;

FIG. 4 is a view showing the door lock in unlatched position .and thecoupling member held in an uncoupled bypass position;

FIG. 5 is a view taken generally along the plane indicated by line 55 ofFIG. 4; and

FIG. 6 is a view taken generally along the plane indicated by line 6-6of FIG. 2.

Referring now particularly to FIG. I of the drawings, a vehicle bodydesignated generally 10 includes a front door 12 hinged adjacent itsforward edge 14 to the body for swinging movement between a closedposition, as shown, and an open position, not shown. When the door is inclosed position, it is held therein by a door lock designated generally16 according to this invention.

Referring now particularly to FIGS. 2 through 4 of the drawings, thelock 16 includes a main frame of plate 18 which is adapted to be mountedon the inside of the lock pillar wall of door 12 by suitable boltsextending through threaded embossments 20 of the frame. An auxiliaryframe or plate 22 is located in spaced relationship to the frame 20 bylateral flanges 24, 26, and 28, and is staked at 32 to the flanges 24and 30 after assembly.

A fork bolt 34 is swingably mounted on a pivot or shaft 36 extendingbetween the plates 18 and 22 for movement between a latched position, asshown in FIGS. 2 and 3, and an unlatched position, shown in FIG. '4. Acoil torsion spring 38 surrounds the pivot 36 and has one end thereofbearing against a lanced lateral tab of framel8 and the other endbearing against a notched lateral tab of the bolt to continually biasthebolt counterclockwise to unlatched position. When the bolt is in latchedposition as shown in FIG. 2, a conventional headed striker pin 40 istrapped between the throat of the bolt and a conventional spring biasedshoe 42. The striker pin 40 is mounted on the lock pillar wall of thebody and the engagement of the bolt in latched position with the strikerpin maintains the door 12 in closed position. A detent 44 is pivoted ona pivot or shaft 46 extending between the plates 18 and 22 and includesa foot 48 which is engageable with either shoulder ,50 or 52 of the bolt34 to thereby respectively hold the bolt in either a fully latchedposition, as shown in FIG. 2, or an intermediate atched position, notshown. A coil torsion spring 54, FIG. 3, surrounds the pivot 46 and ishooked between the detent and a lateral tab of frame 18 to continuouslybias the detent counterclockwise and towards the bolt 34. l l I Theframe 18 includes an upwardly extending ribbed extension 56 and anoutside operating lever 58 is pivoted at 60 to this extension. The lever58 includes a lateral flange 62 which is engageable by the push rod 64of conventional pushbutton means 66, FIG. 1, for release of the detentfrom the outside of the vehicle as will be described. The pushbuttonmeans 66 is housed within a conventional outside door handle 68. Theupper laterally bent end of an intermittent link or coupling member 70fits within an opening in the lever 58 and a coil torsion spring 72surrounding the pivot 60 engages both a notched lateral flange 74 ofextension 56 and an opening in the member 70 to bias the member 70downwardly and in turn bias the lever 58 counterclockwise to hold thelever in engagement with the flange 74, as shown in FIG. 2. The spring72 also provides an antirattle arrangement between the upper end of themember 70 and the lever 58. The lower end of the member 70 includes alaterally inwardly extending tab 76 which underlies a shoulder 78 of thedetent 44 when the member 70 is in its coupled position, as shown inFIG. 2, and which is located to the left of the shoulder 78 when themember 70 is in its.uncoupled position as shown in FIG. 4.

When the member 70 is in its coupled position as shown in FIG. 2 and thepushbutton means 66 is operated to shift the push rod 64 inwardly ofdoor 12 or to the right as viewed in FIG. 2, engagement of the push rodwith flange 62 of lever 58 will swing the leverclockwise about pivot 60and in turn shift the member 70 upwardly. Tl-Ie engagement of tab 76with shoulder 78 swings the detent 44 clockwise about pivot 46 andagainst the action of spring 54 to thereby release the bolt 34 formovement to unlatched position. When the member 70 is in the uncoupledposition, it can be seen that any upward shifting movement of the member70 will have no effect on the detent 44 since the intermittent memberwill merely freewheel with respect to the detent.

A locking lever 80, located inwardly of plate 22, is pivoted at 82 tothe plate and includes a notch 84 which straddles a laterally inwardlyextending bent tab 86 of the plate. An overcenter-type coil torsionspring 88 is interconnected between the locking lever and theplate 22 tothereby hold the locking lever in either an unlocked position, shown inFIG. 2, wherein the left-hand edge of the notch 84 engages tab 86, or alocked position, shown in FIG. 4, wherein the right-hand edge of thenotch 84 engages the tab 86.

Another locking lever 90 is coaxially pivoted at 82 with the lockinglever 80, although located outwardly of plate 22 rather than inwardlythereof. A notched lateral tab 92 of the locking lever extends throughan opening 94 of the locking lever 90. A coil torsion spring 96surrounds the pivot 82 and has one leg thereof engaging the notch in tab92 and the other leg thereof engaging a notched lateral tab 98 of aholding or detent lever 100 pivoted on pivot 82. Lever 90 includes ashoulder 102 which is engageable by the tab 98 under the action ofspring 96 to thereby locate levers 90 and 100 with respect to each otherand continuously bias the lever 90 clockwise of the pivot 82 and intoengagement with the tab 92 so that the levers 80 and 90 will move as aunit and in turn move the lever 100 with them during their movement. Thelevers 88 and 90 and the holding lever 100 are movable as a unit fromtheir position of FIG. 2, wherein the levers 80 and 90 are in unlockedposition and the lever 100 is in nonholding or undetented position, totheir position shown in FIG. 4 wherein the lever 80 and 90 are in lockedposition and the lever 100 is in holding or detented position.

The lever 80 further includes a laterally inwardly extending flange 104which includes a tab 106, FIG. 3, received within a slot 108 of theintermittent member 70. Thus, when the member 80 moves from its FIG. 2position to its FIG. 4 position, the engagement of the tab 106 with theslot 108 moves the intermittent member form its coupled position to itsuncoupled position as member 70 swings about its upper end relative tolever 58.

From the foregoing description, it is believed apparent that the lockinglevers 80 and 90 are in unlocked position and the holding lever is innonholding or undetented position, when the intermittent member is incoupled position, and that the locking levers are in locked position andthe holding lever is in holding or detented position when theintermittent member is in uncoupled position. The locking levers aremovable between their positions by a conventional garnish button 110,FIG. 1, conventionally connected to a lateral flange 112 of lever 90 andalso by an outside key cylinder arrangement 114, FIG. 1, conventionallyconnected to an extension 116 of the lever 90.

A transfer lever 118, located outwardly of plate 22, is coaxiallypivoted at 46 with the detent 44. The lower end of the lever 118includes a laterally inwardly extending tab 120 and the upper endthereof includes a laterally outwardly extending notched tab 122. A coiltorsion spring 124 surrounds the pivot 46 outwardly of the plate 22 andhas one end thereof engaging a notched lateral tab 126 of lever 100 andthe other end thereof engaging the tab 122 to thereby continuously biasthe lever 118 counterclockwise and bias the lever 100 clockwise tolocate and hold the tab 120 in engagement with an edge of plate 22 andadditionally hold tab 98 in engagement with shoulder 102. Spring 124 isweaker than springs 96 and 88 and therefore cannot continuously maintainlevers 80 and 90 in locked position and lever 100 in holding or detentedposition.

The inside operating means includes a conventional remote handle and rodassembly 128, FIG. 1, connected to one leg of an inside remote bellcranklever 130 which is pivoted at 132 to a lateral apertured tab 134 ofplate 22. The other leg of lever 130 overlies an extension 136 of thedetent 44 so that swinging movement of the lever 130 upon operation ofthe handle assembly 128 will swing the detent clockwise and move thefoot 48 thereof out of engagement with either of the bolt shoulders 50or 52.

Assume now that the bolt 34 has been released, as previ ously described,by operation of the pushbutton means 66 and that the door 12 is in itsopen position. Assume also that the operator then either depresses thegarnish button 110 or operates the key cylinder assembly 114 to therebymove the locking levers 80 and 90 from their unlocked position of FIG. 2to their locked position of FIG. 4 and move the lever 100 from theundetented position of FIG. 2 to the detented position of FIG. 4.

Assume now that the operator wishes to close the door 12 and lock thedoor from the outside of the vehicle without any further operation. Theoperator momentarily depresses the pushbutton means 66 to move the pushrod 64 to the right and in turn swing the lever 58 clockwise of thepivot 60. As the lever 58 moves clockwise from its position of FIG. 2 toits position of FIG. 4, the member 70 will, of course, shift upwardly toits position shown in FIG. 4 and the detent shoulder 138 of the member100 will engage a lateral flange 140 of the lever 58 to thereby retainthe lever in this position and retain the member 70 in its upperposition. Thereafter, all that the operator need do is to close the door12. As the door closes, the bolt 34 will, of course, rotate clockwiseupon engagement with the striker pin 40 and when the bolt reaches itslatched position, the edge of the bolt will engage the tab 120 to swingthe lever 118 clockwise from its position of FIG. 4 to its position ofFIG. 2. This will cause the tab 122 to pick up a shoulder 142 of lever100 and swing the lever counterclockwise of the pivot 82 from its FIG. 4position to its FIG. 2 position. As the lever 100 swings in thisdirection, it will release the lever 58 so that the lever can return toits position shown in FIG. 2 and the member 70, of course, will beshifted downwardly to its uncoupled position so that the lock 16 willremain in its locked condition. The levers and remain in their lockedposition.

If the operator moves the levers 80 and 90 to their locked position bydepressing the garnish button 110 or operating the key cylinder assembly114 and does not thereafter momentarily operate the pushbutton means 66before he closes the door, the movement of the bolt to latched positionwill intermittently move the detent 44 clockwise as the foot 48 ratchetspast shoulders 50 and 52. The movement of the detent will cause an edge144 of the detent to pick up a lateral tab 146 of the member 70 to swingthe member 70 counterclockwise of the lever 58 about its upper end. Theengagement of tab 106 with slot 108 will swing lever 80 counterclockwisefrom locked position to unlocked position. The engagement of tab 92 withslot 94 moves lever 90 from the locked to unlocked position, and theengagement of shoulder 102 with tab 98 moves member counterclockwise torelease shoulder 138 from tab 140 and permit lever 58 to move to itsposition of FIG. 2. Thus the lock will automatically undog or be placedin its unlocked condition.

If the operator moves the levers 80 and 90 to their locked position andmomentarily depresses the pushbutton means 66 as previously described,and then changes his mind, he can raise the garnish button to return thelevers 80 and 90 to their unlocked position. When the garnish button 110is raised, the engagement of the edge 102 over lever 90 with tab 98 oflever 100 swings the lever 100 counterclockwise and out of engagementwith the operating lever 58 to pennit the operating lever 58 to returnto its normal position shown in FIG. 2. This shifts the intermittentmember 70 downwardly to its uncoupled position. After this initialrelease of the lever 100, the continued counterclockwise movement of thelever 90 causes the lower edge of the opening 94 to pick up the tab 92and move the lever 80 to unlocked position as the lever 90 moves to itsunlocked position. This swings the intermittent member 70counterclockwise to its coupled position wherein the tab 76 underliesthe shoulder 78, as shown in FIG. 2. Thus, the door lock of thisinvention permits the operator to change his mind providing that heraises the garnish button before the door is closed.

Thus, this invention provides an improved vehicle body door lock.

Iclaim:

1. A closure latch comprising, in combination, latch means movablebetween latched and unlatched positions, detent means movable betweendetented and undetented positions with respect to the latch means andoperative in detented position to hold the latch means in latchedposition, movable operating means, coupling means movable betweencoupled and uncoupled positions with respect to the detent means andoperatively connecting the operating means and detent means in coupledposition, means for moving the coupling means between coupled anduncoupled positions, means normally operative to move the coupling meansfrom uncoupled to coupled position during movement of the latch meansfrom unlatched to latched position, means selectively operable in theunlatched position of the latch means for releasably disabling thenormally operative means, and means operated by the latch means forautomatically releasing the disabling means upon movement of the latchmeans to latched position.

2. A closure latch comprising, in combination, latch means movablebetween latched and unlatched positions, detent means movable betweendetented and undetented positions with respect to the latch means andoperative in detented position to hold the latch means in latchedposition, movable operating means, coupling means movable betweencoupled and uncoupled positions with respect to the detent means andoperatively connecting the operating means and detent means in coupledposition, means for moving the coupling means between coupled anduncoupled positions, means normally operative to move the coupling meansfrom uncoupled to coupled position during movement of the latch meansfrom unlatched to latched position, means selectively operable bymovement of the operating means in the unlatched position of the latchmeans for releasably disabling the normally operative means, and meansoperated by the latch means for auto matically releasing the disablingmeans upon movement of the latch means to latched position.

3. A closure latch comprising, in combination, latch means movablebetween latched and unlatched positions, detent means movable betweendetented and undetented positions with respect to the latch means andoperative in detented position to hold the latch means in latchedposition, movable operating means, coupling means operatively connectedto the operating means and movable between coupled and uncoupledpositions with respect to the detent means, movement of the couplingmeans in coupled position by the operating means moving the couplingmeans into engagement with the detent means to move the detent means toundetented position and release the latch means, means for moving thecoupling means between coupled and uncoupled positions, means on thecoupling means engageable by the detent means upon movement of thedetent means by the latch means for moving the coupling means fromuncoupled to coupled position, releasable means for holding the couplingengageable means in a bypass position with respect to the detent meansto maintain the coupling means in uncoupled position, and means operatedby the latch means for automatically releasing the releasable means uponmovement of the latch means to latched position.

4. A closure latch comprising, in combination, latch means movablebetween latched and unlatched positions, detent means movable betweendetented and undetented positions with respect to the latch means andoperative in detented position to hold the latch means in latchedposition, movable operating means, coupling means operatively connectedto the operating means and movable between coupled and uncoupledpositions with respect to the detent means, movement of the couplingmeans in coupled position by the operating means moving the couplingmeans into engagement with the detent means to move the detent means toundetented position and release the latch means, means for moving thecoupling means between coupled and uncoupled positions, means on thecoupling means engageable by the detent means upon movement of thedetent means by the latch means for moving the coupling means fromuncoupled to coupled position, means for moving the coupling engageablemeans to a bypass position with respect to the detent means, meansreleasably holding the coupling engageable means in the bypass position,and means operated by the latch means for automatically releasing theholding means upon movement of the latch means to latched position.

5. A closure latch comprising, in combination, latch means movablebetween latched and unlatched positions, detent means movable betweendetented and undetented positions with respect to the latch means andoperative in detented position to hold the latch means in latchedposition, movable operating means, coupling means swingably connected tothe operating means for movement relative thereto between coupled anduncoupled positions with respect to the detent means, and shiftingmovement thereby in coupled position into engagement with the detentmeans to move the detent means to undetented position and release thelatch means, means for swinging the coupling means between coupled anduncoupled positions, means on the coupling means engageable by thedetent means upon movement of the detent means by the latch means forswinging the coupling means from uncoupled to coupled position, shiftingmovement of the coupling means in uncoupled position by the operatingmeans moving the coupling engageable means to a bypass position withrespect to the detent means, releasable holding means for maintainingthe coupling means in the bypass position, and means operated by thelatch means for releasing the holding means upon movement of the latchmeans to latched position.

6. The combination recited in claim 5 wherein the holding means aremovable into and out of the path of shifting movement of the couplingmeans for releasable engagement therewith, and the means operated by thelatch means move the holding means out of the path of movement of thecoupling means to release the coupling means.

' 7. The combination recited in claim 5 wherein the releasable holdingmeans are operatively connected to the swinging means for movement intothe path of shifting movement of the coupling means upon movement of thecoupling means by the swinging means to uncoupled position, the meansoperated by the latch means moving the releasable holding means out ofthe path of movement of the coupling means.

8. The combination recited in claim 5 wherein the means for swinging thecoupling means include locking lever means movable between locked andunlocked positions to respectively swing the coupling means betweenuncoupled and coupled positions, the holding means including a holdingmember movable between holding and released positions and engageable inholding position with the operating means upon movement of the couplingengageable means to the bypass position to maintain the couplingengageable means in bypass position.

9. A closure latch comprising, in combination, latch means movablebetween latched and unlatched positions, detent means movable betweendetented and undetented positions with respect to the latch means andoperative in detented position to hold the latch means in latchedposition, movable operating means, a coupling member swingably connectedto the operating means for swinging movement relative thereto betweencoupled and uncoupled positions with respect to the detent means, andshifting movement thereby in coupled position into engagement with thedetent means to move the detent means to undetented position and releasethe latch means, locking movable between unlocked and locked positionsfor respectively swinging the coupling member between coupled anduncoupled positions, means on the coupling member engageable by thedetent means upon movement of the detent means by the latch means forswinging the coupling member from uncoupled to coupled position andmoving the locking means from locked to unlocked position, shiftingmovement of the coupling member in uncoupled position by the operatingmeans moving the coupling member engageable means to a bypass positionwith respect to the detent means, holding means movable between holdingand released positions with respect to the operating means andengageable therewith in holding position upon movement of the operatingmeans when the coupling member is in uncoupled position to maintain thecoupling member engageable means in the bypass position, meansoperatively connecting the holding means to the locking means formovement thereby between holding and released positions upon movement ofthe locking means between locked and unlocked positions and movementindependently thereof, and means operated by the latch means for movingthe holding means to released position independent of movement of thelocking means upon movement of the latch means to latched position.

1. A closure latch comprising, in combination, latch means movablebetween latched and unlatched positions, detent means movable betweendetented and undetented positions with respect to the latch means andoperative in detented position to hold the latch means in latchedposition, movable operating means, coupling means movable betweencoupled and uncoupled positions with respect to the detent means andoperatively connecting the operating means and detent means in coupledposition, means for moving the coupling means between coupled anduncoupled positions, means normally operative to move the coupling meansfrom uncoupled to coupled position during movement of the latch meansfrom unlatched to latched position, means selectively operable in theunlatched position of the latch means for releasably disabling thenormally operative means, and means operated by the latch means forautomatically releasing the disabling means upon movement of the latchmeans to latched position.
 2. A closure latch comprising, incombination, latch means movable between latched and unlatchedpositions, detent means movable between detented and undetentedpositions with respect to the latch means and operative in detentedposition to hold the latch means in latched position, movable operatingmeans, coupling means movable between coupled and uncoupled positionswith respect to the detent means and operatively connecting theoperating means and detent means in coupled position, means for movingthe coupling means between coupled and uncoupled positions, meansnormally operative to move the coupling means from uncoupled to coupledposition during movement of the latch means from unlatched to latchedposition, means selectively operable by movement of the operating meansin the unlatched position of the latch means for releasably disablingthe normally operative means, and means operated by the latch means forautomatically releasing the disabling means upon movement of the latchmeans to latched position.
 3. A closure latch comprising, incombination, latch means movable between latched and unlatchedpositions, detent means movable between detented and undetentedpositions with respect to the latch means and operative in detentedposition to hold the latch means in latched position, movable operatingmeans, coupling means operatively connected to the operating means andmovable between coupled and uncoupled positions with respect to thedetent means, movement of the coupling means in coupled position by theoperating means moving the coupling means into engagement with thedetent means to move the detent means to undetented position and releasethe latch means, means for moving the coupling means between coupled anduncoupled positions, means on the coupling means engageable by thedetent means upon movement of the detent means by the latch means formoving the coupling means from uncoupled to coupled position, releasablemeans for holding the coupling engageable means in a bypass positionwith respect to the detent means to maintain the coupling means inuncoupled position, and means operated by the latch means forautomatically releasing the releasable means upon movement of the latchmeans to latched position.
 4. A closure latch comprising, incombination, latch means movable between latched and unlatchedpositions, detent means movable between detented and undetentedpositions with respect to the latch means and operative in detentedposition to hold the latch means in latched position, movable operatingmeans, coupling means operatively connected to the operating means andmovable between coupled and uncoupled positions with respect to thedetent means, movement of the coupling means in coupled position by theoperating means moving the coupling means into engagement with thedetent means to move the detent means to undetented position and releasethe latch means, means for moving the coupling means between coupled anduncoupled positions, means on the coupling means engageable by thedetent means upon movement of the detent means by the latch means formoving the coupling means from uncoupled to coupled position, means formoving the coupling engageable means to a bypass position with respectto the detent means, means releasably holding the coupling engageablemeans in the bypass position, and means operated by the latch means forautomatically releasing the holding means upon movement of the latchmeans to latched position.
 5. A closure latch comprising, incombination, latch means movable between latched and unlatchedpositions, detent means movable between detented and undetentedpositions with respect to the latch means and operative in detentedposition to hold the latch means in latched position, movable operatingmeans, coupling means swingably connected to the operating means formovement relative thereto between coupled and uncoupled positions withrespect to the detent means, and shifting movement thereby in coupledposition into engagement with the detent means to move the detent meansto undetented position and release the latch means, means for swingingthe coupling means between coupled and uncoupled positions, means on thecoupling means engageable by the detent means upon movement of thedetent means by the latch means for swinging the coupling means fromuncoupled to coupled position, shifting movement of the coupling meansin uncoupled position by the operating means moving the couplingengageable means to a bypass position with respect to the detent means,releasable holding means for maintaining the coupling means in thebypass position, and means operated by the latch means for releasing theholding means upon movement of the latch means to latched position. 6.The combination recited in claim 5 wherein the holding means are movableinto and out of the path of shifting movement of the coupling means forreleasable engagement therewith, and the means operated by the latchmeans move the holding means out of the path of movement of the couplingmeans to release the coupling means.
 7. The combination recited in claim5 wherein the releasable holding means are operatively connected to theswinging means for movement into the path of shifting movement of thecoupling means upon movement of the coupling means by the swinging meansto uncoupled position, the means operated by the latch means moving thereleasable holding means out of the path of movement of the couplingmeans.
 8. The combination recited in claim 5 wherein the means forswinging the coupling means include locking lever means movable betweenlocked and unlocked positions to respectively swing the coupling meansbetween uncoupled and coupled positions, the holding means including aholding member movable between holding and released positions andengageable in holding position with the operating means upon movement ofthe coupling engageable means to the bypass position to maintain thecoupling engageable means in bypass position.
 9. A closure latchcomprising, in combination, latch means movAble between latched andunlatched positions, detent means movable between detented andundetented positions with respect to the latch means and operative indetented position to hold the latch means in latched position, movableoperating means, a coupling member swingably connected to the operatingmeans for swinging movement relative thereto between coupled anduncoupled positions with respect to the detent means, and shiftingmovement thereby in coupled position into engagement with the detentmeans to move the detent means to undetented position and release thelatch means, locking movable between unlocked and locked positions forrespectively swinging the coupling member between coupled and uncoupledpositions, means on the coupling member engageable by the detent meansupon movement of the detent means by the latch means for swinging thecoupling member from uncoupled to coupled position and moving thelocking means from locked to unlocked position, shifting movement of thecoupling member in uncoupled position by the operating means moving thecoupling member engageable means to a bypass position with respect tothe detent means, holding means movable between holding and releasedpositions with respect to the operating means and engageable therewithin holding position upon movement of the operating means when thecoupling member is in uncoupled position to maintain the coupling memberengageable means in the bypass position, means operatively connectingthe holding means to the locking means for movement thereby betweenholding and released positions upon movement of the locking meansbetween locked and unlocked positions and movement independentlythereof, and means operated by the latch means for moving the holdingmeans to released position independent of movement of the locking meansupon movement of the latch means to latched position.